Controller for electric motors.



N0. 807 858. PATENTED DEC. 19, 1905. W. A. PARIS.

CONTROLLER FOR ELECTRIC, MOTORS.

APPLICATION FILED APR.3, 1905.

2 SHEETS-SHEET 1.

PATENTBD DEC. 19, 1905.

W. A. PARIS.; OONTROLLRR FOR ELECTRIC MOTORS.

APPLICATION FILED APRH'S, 1905.

2 SHEETS-SHEET 2*.

ATTORN EY WITNESSES.

UNITED STATES PATENT OFFICE.

\VILLIAM A. PARIS, OF EDGEWOOD PARK, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELECTRIC 8: MANUFACTURING COMPANY, A COR- PORATION OF PENNSYLVANIA.

Specification of Letters Patent.

Patented Dec. 19, 1905.

Application file l April 8, 1905. Serial No. 253.644.

To all whom zit may concern.-

Beit known thatLWILLIAM A. PARIS, acitizen of the United States,and aresident of Edgewood Park, in the county of Allegheny and State of Pennsylvania, have invented a new an oil-immersed controller-drum makes it advisable to. provide a lowering means for said casing in order that the drums may be inspected. The devices heretofore employed for this purpose have been cumbersome and diflicult of operation, and a special loweringhandle has generally been employed, whereas in the controller of my invention the drumactuating handle is employed for loweringthe inclosing tank.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is a longitudinal section, and Fig. 2 a plan view, of a'controller with the cover removed to disclose the drum-actuating mechanism. Fig. 3 is a longitudinal section of the upper shaft-bearing and adjacent parts, and

l Figs. 4, 5, 6, 7 and 8 are sectional views of details.

In Figs. 1 to 8, inclusive, is illustrated a controller 113, comprising a base 114, a drumactuating mechanism 115,a manually-operated controller-handle 116, a plurality of drums 117 and 118, a tank or casing 119, and a shaft 120. The drum-actuating mechanism is supported from the main base 114 by a plurality of rods 121,'122,-and.123 and comprises a spider 124, hav'inga bearing for the upper end of a shaft 126,;w-hich constitutes one section of the main shaft, the shaft 120 constituting the other section. The top plate 127 supports the shaft 120 in a bearing 129 and a sleeve 130, on which is cast a gearwheel 131 and a cam-wheel 132. Attached to the plate 127 is'a frame 133, to which the bearing-spider 124 and the supporting-rods 121, 122, and 123 are fastened. The lower end of the shaft 120 is provided with a collar 134, which has a projection 135, that may engage with a notch 136 in the sleeve 130, The bottom surface of the collar 134 is provided with a projection 136*, similar to the projection 135, which may engage with anotch 137 in a collar 138, that is similar to the collar 134, and is rigidly fastened to the upper end of the shaft 126. The sleeve is fitted over collars 134 and 138, so that the shaft 120 is held in position and is so arranged that the collar 134 may engage either the collar 138 to actuate the shaft 126 or the notch 136 in the sleeve 130.

The position of the shaft 120 determines the engagement of the collar 134 and is itself dependent upon a binding-nut 139, which serves to hold the controller-handle 116 in position. When the nut 139 is set down against a shoulder 140 of the shaft 120, the projection of collar 134' engages the notch 136 in sleeve 130; but when it is sufficiently raised from the shoulder the projection 136 of collar 134 drops down into engagement with the notch 137 in collar 138.-

Under normal operating conditions the collar 134 is held in engagement with the sleeve 130 and the gear-wheel 131 on the sleeve 130 'engages-geanwheels 141 and 142, whichare keyed to the shafts of the controller-drums 117 and 118, respectively, that are rotatably supported upon an. independent base 143, which is suspended from the spider-casting 124 by means of a plurality of rods or bars 144, 145, and 146. The controller-handle 116 is keyed to the shaft 120. by a taper pin 147, which is flattened on one side to engage a correspondingly-flattened portion 148 of the shaft A pawl 149 is pressed into engagement with the cam-wheel 132 by a spring'150 in the usual manner.

Substantially the entire length of the shaft 126 is screw-threaded to receive a correspondingly-threaded block 153, which is connected rigidly to a spider 154 by means of a tube 155, that is of sufficient internal diameter to slip over the shaft 120.

The spider 154 is fastened to a bottom plate 156 of the casing 119, and the length of the tube is such that the upper edge of the casing-119 is seated in a groove 157 in the frame 133 when the block 153 is close to the bearing 125.

necessary to inspect the controller-drums. If the nut 139 is unscrewed, the collar 13% will drop into engagement with the collar 138, and

the lower shaft 126 may then be rotated by the handle 116 to lower' the tank 119 without any movement of the drum, since the collar 134 is not in engagement with the sleeve 130.

While l have shown and described a specific combination of devices for effecting a desired result, I desire it to be understood that all variations in form, dimensions, and arrangements of parts which do not materially change the mode of operation or result are within the scope of my invention.

.1 claim as my invention-- 1. In a controller, the combination with an inclosing casing and a contact-carrying member, of a handle for operating said member and means for disconnecting said handle and member. and for operatively connecting the handle to the casing to lower and raise the same.

2. In a controller, the combination with an inclosing casing and a rotatable, contact-carrying member, of a two-part actuating-shaft and an operating-handle therefor, said handle engaging one part of said shaft to actuate either said contact-carrying member or said inclosing casing.

3. In a controller, the combination With an inclosing casing and one or more rotatable, contact-carryingmembers, of atWo-part actuating shaft comprising an actuating portion and an operating-handle therefor, and a screwthreaded portion that maybe engaged by said actuating portion to lower said inclosing casing.

a. In a controller, the combination with an inclosing casing and one or more rotatable, contact-carrying members, of a two-part actuatin -shaft com risin an actuating portion and an operating-handle therefor, and ascrewthreaded portion that maybe engaged by said actuating portion to lower said inclosing casing, and a gear-carrying sleeve that may be driven by said actuating portion to drive said contact-carrying members.

In a controller, the combination with an inclosing casing and one or more rotatable contact-carrying members, of a two-part shaft comprising'an actuating portion, and an operating-handle therefor, a collar on said portion that may engage either a'screw-threaded portion of said shaft to lower said inclosing This arrangement provides a means for lowering the casing 119 when it is casing-or a gear-carrying sleeve to actuate said rotatable contact-carrying member.

6. In a controller, the combination with an inclosing casing and 'a rotatable contact-carrying member, of a subdivided actuating-shaft, comprising a driving portion and a threaded driven portion, an operating-handle fixed to said driving portion, a sleeve and threaded bushing rigidly attached to and actuated to raise and lower said inclosing casing by said geared to said drums, a screw-shaft that engages a nut on said casing and a clutch device for connecting the'sleeve to the operatinghandle and disconnecting the shaftthercfrom or vice versa.

9. In a controller, the combination with one or more contact-carrying drums and a casing therefor having a centrally-located nut, of a screw-shaft that engages said nut, a rotatable member that is operatively connected to said drum or drums, an operating-handle and a clutch device for operativcly connecting said. handle to either the screw-shaft or the drum-- operating member and at the same time disconnecting the other part.

10. Ina eontroller,the combination with one or more contact-carrying drums, an inclosing casing, a rotatable member geared to said drum or drums and a raising and lowering member for said casing, of a single operating-handle and a clutch device for connecting said handle to the drum-actuating member and dis connecting it from the casing-actuating member or vice versa.

In testimony whereof 1 have hereunto sub.

scribed my name this 30th day of March, 1905.

WlLLlAM A. PARIS.

Witnesses:

W. N. Gunman, BIRNEY Hines. 

